Top Nine Most Often Used Strategies for Solving Expert Sudoku Puzzles

Рет қаралды 2,044,588

7 жыл бұрын

Master these strategies and be an expert.
Please visit my channel and check out my other uploads such as "How to solve a Sudoku puzzle - A Tutorial", or "Next Nine Sudoku Strategies Beyond The Top Nine Most Often Used" if you haven't done so.

Пікірлер: 856

@RFC963 3 жыл бұрын

You will find detailed explanations on many strategies if you visit my channel and check out my other uploads.

@cynthiaboot7902 3 жыл бұрын

What your channel Rife

@norman4628 3 жыл бұрын

The subtitles make it difficult to follow your strategies, because they block cells in your examples. If that's not fixed it makes your video pointless

@RFC963 3 жыл бұрын

@@norman4628 The video looks just fine on my desk top. Thank you for your interest in sudoku.

@jsomeguy2901 2 жыл бұрын

My best for an easy sudoku is 1:10 is that good because google never gives me a straight answer

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@nayathau2953 5 жыл бұрын

Trust me Put the video speed on 1.5x

@AnaTheWiseBanana 3 жыл бұрын

Thank you.

@olivander5171 3 жыл бұрын

@ufutamala 3 жыл бұрын

Thank you

@sabakhan5674 3 жыл бұрын

@pankajjagarwal9925 3 жыл бұрын

Trust me, just skip this video

@meli6089 2 жыл бұрын

The fact that I learned all of this strategies by myself just by playing sudoku makes me happy

@RFC963 2 жыл бұрын

You are smart. I'm happy for you,

@N0Xa880iUL 2 жыл бұрын

ALL of these?

@meli6089 2 жыл бұрын

@@N0Xa880iUL yup, ALL of those

@N0Xa880iUL 2 жыл бұрын

@@meli6089 You're smart

@lx4302 2 жыл бұрын

*just* by playing? so you discovered them? 👁👄👁

@giorgio84 3 жыл бұрын

1:16 naked single 1:34 hidden single 1:56 naked pair 2:11 pointing pair (triple) 2:31 claiming pair (triple) 2:47 naked triple 3:05 x-wing 3:24 hidden pair 3:42 naked quad

@3s-sahajselfstudy 3 жыл бұрын

Last three seems to be derivatives only. (Not useful)

@hatsuki3846 2 жыл бұрын

@@3s-sahajselfstudy ur mom

@DillPicklePatrick 2 жыл бұрын

@@3s-sahajselfstudy 9 months late, it this is completely wrong. They are all useful (a lot actually, in id say 1/2 sudokus you will find a hidden pair.)

@maniarunachalam5301 Жыл бұрын

What about Y wing technique?

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@Shiraz687 5 жыл бұрын

i hate robotic voices and slides.

@220p2 5 жыл бұрын

you just hate dishwashers

@I_am_milan 4 жыл бұрын

Me too 😭

@Kevergy5 4 жыл бұрын

Me too but the content on this video is perfect. I'm now solving diabolical puzzles

@donaldjohansen3682 4 жыл бұрын

Chris Kibb k

@RFC963 4 жыл бұрын

@@Kevergy5 Thanks!

@adelarscheidt 6 жыл бұрын

That was awesome. I had been using strategies 1 to 5 without even knowing they had a name. Those last 4 will come in handy!

@RFC963 6 жыл бұрын

Thank you so much for your comment. Regards,

@marieb9421 5 жыл бұрын

omg me too!

@angie565656 4 жыл бұрын

Me too I thought I was the only one using them 😂😂

@Zzzatch1000 3 жыл бұрын

Yes me too

@lavishasharma3084 3 жыл бұрын

Same.

@ADRIAN-zh4ti 5 жыл бұрын

My brain feels like a chicken arm lifting a 90 pounds dumbbell

@harshitverma6550 2 ай бұрын

So after 5 years what does your brain feel like?

@mueezadam8438 4 жыл бұрын

A whole new world just opened up to me... I like the systematized presentation, with each entry using the same template, terms, and sentence structure. It makes for cross-referencing two techniques within the same ‘genus’ _(like naked pairs and hidden pairs)_ much easier to follow!

@RFC963 4 жыл бұрын

Thank you for your comment. Regards,

@JB_46 3 жыл бұрын

actually the difference between claiming pair and pointing pair wasn't quite clear to me at first. Eventually understood though that with the pointing pair the conclusion is based on the block while for the claiming pair it is based on rows/columns

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@TheRealLaughingGravy 4 ай бұрын

Thank you, thank you, thank you! This is EXACTLY the kind of video I've been searching for. So many Sudoku videos are long-winded and poorly demonstrated tutorials about one strategy. What I wanted was a single video with short, straightforward and stylistically consistent examples of the most common strategies, and finally I found one. I've abandoned many puzzles I know I could have solved if only I'd come across this video earlier.

@lilly98034 3 жыл бұрын

I didn’t know the name of the strategies I was using... Helpful video

@RFC963 3 жыл бұрын

Thank you for your comment.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@MackNNations 6 жыл бұрын

1:15 Naked Single 1:33 Hidden Single 1:55 Naked Pair 2:11 Pointing Pair (Triple) 2:30 Claiming Pair (Triple) 2:46 Naked Triple 3:04 X-Wing 3:23 Hidden Pair 3:41 Naked Quad Thanks for the helpful strategies.

@RFC963 6 жыл бұрын

Thank you for watching and commenting. Much appreciated.

@matheareginavillavicencio6823 5 жыл бұрын

MackNNations How good are they i like them a bit because speak like robotic person Are TheyROBOTS?

@kvasu1670 4 жыл бұрын

Your information helps me in preparing my sudoku notes. Thk you.

@liliacfury 4 жыл бұрын

I legit was flying through the comments section looking for a comment like this knowing it would be here somewhere. Thank you.

@macforme 4 жыл бұрын

MackNNations....thanks for the "Table of Contents"

@JoelHershberger 6 жыл бұрын

Hate the robot voice, but the strategies are awesome!!

@RFC963 6 жыл бұрын

Joel Hershberger - Thank you very much for your comment.

@water2986 5 жыл бұрын

@@RFC963 hombre espanol

@Blubb5000 4 жыл бұрын

These are all standard strategies. Nothing special is shown in the video.

@JoelHershberger 4 жыл бұрын

@@Blubb5000 You are right, but for me at the time, I was just learning and had good info for me. We all start somewhere and this is one of the places that I was starting. It is special to people that are just learning. No need to downplay the content. It isn't special unless it is new material to someone. That is when it is special.

@Blubb5000 4 жыл бұрын

@@JoelHershberger Look for the channel 'Cracking The Cryptic'. It's a channel from two UK Sudoku masters. They are awesome (and real life humans in flesh and blood). I guess you will enjoy Simon's method to explain the strategies to solve all sorts of Sudoku puzzles. From super easy to OMG!

@borboletta1969 2 жыл бұрын

Thank you. This is a great summary of basic techniques for easy to medium puzzles and are the first ones to learn if you are just beginning Sudoku. These will help you solve all three New York Times Daily Sudoku puzzles, which are great puzzles to begin with. Mastering these first 9 techniques will also prepare you for more advanced techniques like Y-Wing, Skyscraper, Hidden Rectangle and Swordfish.

@RFC963 2 жыл бұрын

Thank you for your comment.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@Gamer-is7pm 10 ай бұрын

I do not think those techniques are for those who are solving easy or medium level players but also for hard and expert players as well

@Tiamat_X 4 жыл бұрын

I'm pretty proud of myself right now... I was stuck on a particularly difficult puzzle and came here thinking that there were many other strategies that I hadn't even considered. It turns out, however, that I'd managed to reason out 8 of the 9 strategies. All but the X-Wing, which was actually in the process of forming in my head (I had used it a couple of times in a truncated manner, but hadn't actually spent any time reasoning it out) when I watched this vid.

@RFC963 4 жыл бұрын

I am proud of you too. Congrats!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@susangoyer6681 Жыл бұрын

The best tutorial! Examples make it easy to understand, well done!

@mukeshsrivastava2320 3 жыл бұрын

Lets take a moment and appreciate this guy who is still giving replies 👍🏼 love From India🥳

@RFC963 3 жыл бұрын

You are so kind. I'm very touched. I wish you the best. Thanks for the kind words!

@twinksta36 Жыл бұрын

Can anyone explain why 9 is not a candidate in H6 and I6 for the pointing pair puzzle?

@bombasticbag-man1186 3 ай бұрын

Just a tad late to answer this, but it's because the 3 and 8 in H6/I6 form a hidden pair mentioned later in the video. Basically in this example since there's a 3 and 8 in both of those squares in the same block, there are only 2 possibilities: either top is 3 and the other's 8 or vice versa. With that said, that means that there couldn't possibly be any other candidates because there's no other situation where those 2 possibilities don't occur

@ambroiseamand4792 3 жыл бұрын

Nice! I've looking for this exact video for hours now. I wanted techniques simply explained and could only find masters doing weird plays. Thanks!

@RFC963 3 жыл бұрын

Thank you so much for your comment.

@hgilbert 3 жыл бұрын

"Welcome to the Aperture Science Enrichment Center ...."

@rock123y 5 жыл бұрын

Hi I was want ing to solve hard puzzle ever since I can pass the medium for 2 years ago. The hard puzzle so hard to solve thanks for the video. Love it and very useful and it does work 😁😉

@RFC963 5 жыл бұрын

rock123y - Thank you for the comment.

@NguyenAnh-cj5cf 5 жыл бұрын

Thanks so much

@jubayertanim486 Жыл бұрын

Finally, I have learned sudoku with this beautiful video. Thank you.

@VirajBaraskar Жыл бұрын

never knew that i was using all these tricks without even knowing what they are called. The more you practice the more intuitions you get which indirectly teaches you tricks like these. I can finally sleep in peace knowing that my practice wasnt a waste of time.

@oldoli 5 жыл бұрын

extremley helpfull.

@jessestefan6177 5 жыл бұрын

Its interesting to watch this, because I know after 12 years of playing this game, many different techniques, but I came here to learn new ones on the fly... and realized I already use them but never knew what they were called -_-

@8Brazo8 3 жыл бұрын

everyday you learn smthng new

@kenney9120 6 жыл бұрын

I am learning these strategies one at a time and am already solving medium Sudoku puzzles easily. I use cross hatching and ghost numbers to fill in as many cells as possible and then start penciling in numbers block by block and eliminate as many candidates as possible after each block

@RFC963 6 жыл бұрын

Kenney - Thank you so much for your comment. You are a very smart man.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@marcoshenriques3118 Жыл бұрын

Incredible video. Exactly what i was looking for. Thanks

@meghnatejasvi4247 4 жыл бұрын

Thank you!! Never knew X wing before.. this video is very precise and is exactly what I needed!!

@RFC963 4 жыл бұрын

Thank you so much for your comment. Much appreciated.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@StarTropicsKing 5 жыл бұрын

I’d like to try a naked triple sometime! 😏

@220p2 5 жыл бұрын

you played pokemon ur a virgin 4ever

@milliethemule 4 жыл бұрын

😂

@lungflogger9 4 жыл бұрын

so would i but i don't have the juice for all that, a single empties my tank....just sayin'.

@afox1689 4 жыл бұрын

This made me laugh very hard

@jrtim7948 3 жыл бұрын

lol

@jacobwansleeben3364 Жыл бұрын

First time watching a sudoku tutorial video. Been doing Sudoku for months now and I was able to think up all these techniques on my own. The only exception maybe being the X-wing technique (although I vaguely recall using it a handful of times in the past, but I would just forget about it). I found that one interesting and will activly remember to use it in future. Thanks!

@RFC963 Жыл бұрын

You are smart!!! You may like to know what other techniques you might have thought up on your own. Go to my channel and you will find techniques such as Swordfish, XY-wing, XY-Chain, BUG+1, Uniqueness, and more.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@8695Chacana 4 жыл бұрын

Thanks very much to share these wonderful strategies. Very well.

@RFC963 4 жыл бұрын

Comment like this makes the effort making the video worth its while. Thank you so much.

@paimon8 4 жыл бұрын

But how do u choose which candidate as indicator to eliminate other candidate under the same column if they have the same indicator as well?

@davidgalaviz2004 Жыл бұрын

I've been playing sudoku for a bit and knew most of these but learned a couple of new tricks. Hopefully this will put me over the edge.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@sallyallison7316 3 жыл бұрын

Excellent explanations. First video I've seen that makes sense and is understandable. Thank you.

@RFC963 3 жыл бұрын

Thank you so much from the bottom of my heart for your comment. You made my day.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@DiceLegenz Жыл бұрын

Thank you! Very helpful

@cheeseegg2762 3 жыл бұрын

When I first solve a medium soduku puzzle, it took me more than a hour or two. Now I can solve it in 3 mins given a lucky puzzle and 7 mins on average. This is really helpful thank you

@RFC963 3 жыл бұрын

I'm glad my video helped. Thank you so much for your comment.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@JoeCubicle 3 жыл бұрын

Confused on #4 ( at 2:12 ). Aren't A5/B5 the same as H5/I5? Why do H5/I5 get preference? What am I missing?

@RFC963 3 жыл бұрын

A5/B5 are not the only cells containing a 9 in the block. H5/I5 are. Thank you for your interest in sudoku.

@JHssssss 4 жыл бұрын

Thanks! Now able to solve hard puzzle in less time! Very much thanks!

@RFC963 4 жыл бұрын

Thank you very much for your interest and the comment.

@aravindsubramaniam6373 5 жыл бұрын

Thanks! Very Helpful!!

@RFC963 5 жыл бұрын

Aravind Subramaniam - Thank you for your comment.

@sureshthiagarajan6660 3 жыл бұрын

Concise and clear strategies, examples were great too. Thanks.

@RFC963 3 жыл бұрын

Thank you for watching and commenting. Please visit my channel where you will find many more videos that may also be helpful.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@LeonEllisZ 3 жыл бұрын

wow! thank you! I had managed to figure out all of them except naked triple and naked quad. Imma try a sudoku i've been stuck on tomorrow to see if that was the missing key.

@RFC963 3 жыл бұрын

Thank you for watching and commenting.

@nazag 4 ай бұрын

Very useful video. I have still problems with Z and Y technics. I know but cant understand. Yet this thecnics thought in the video eneugh to solve an extreme hard sudoku. Thanks. Will watch again...

@mrdfk9410 7 ай бұрын

With no4, there is another triple in 2nd block 5,6,9 that repeat. How do know which the choose between 2,6,9 and 5,6,9?

@shreyasarker Жыл бұрын

Tbh I didn't understand anything, I was solving sudoku by myself and it was peaceful until I came to watch this video and my brain died🙂

@Hesheli27 2 жыл бұрын

i went from being stuck to doing some fairly hard ones Thnx !

@xuanle6626 4 жыл бұрын

I’m a beginner, but I already know the first few strategies because it was easy logics to use and know solving the puzzle!

@RFC963 4 жыл бұрын

Thank you for watching and commenting.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@ne8r 4 жыл бұрын

Excellent tips!

@RFC963 4 жыл бұрын

Thanks.

@benneb1benneb 2 жыл бұрын

Thank you for not making a slow unnecessarily long 30-minute video for each one of these.

@RFC963 2 жыл бұрын

Thanx.

@outofusernames9175 3 жыл бұрын

I usually don't mark a column with the possible number combination but it seems like i will have to start doing it from now on !!!

@RFC963 3 жыл бұрын

LA times, AARP, NYTimes, etc. provide online sudoku designed to play with this technique. You can set the settings such that the marked candidates are managed for you. We make mistakes if we try to fill or erase the cells ourselves.

@kenjohnson4645 9 ай бұрын

May I trouble you for the name or link for the Sudoku program that you use in your demonstrations. I like the ability of your program to use color and "strike through" options.

@MeOhMyOh2324 4 жыл бұрын

#7-didn’t know that one. Knew the others but have not been familiar with terminology, so nice to know

@RFC963 4 жыл бұрын

Thanks, have a nice day!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@andacomfeeuvou 6 жыл бұрын

wow!!!! number 6 and number 9!!! great!!!!

@RFC963 6 жыл бұрын

andacomfeeuvou - Thank you so much for your kind comment. Much appreciated!!!

@olidi19 4 жыл бұрын

These strategies crush my brain

@LetoAtreides82 6 жыл бұрын

At 2:58 for the naked tripple lesson you could also eliminate the 4s 6s and 8s from H5, G7, I7, and I8 since they are in the same row and block as the naked tripple.

@RFC963 6 жыл бұрын

The eliminated candidates must be in the same house as the naked tripple, which is in row H only. Thank you so much for your interest in Sudoku.

@SudokuGuy 6 жыл бұрын

there are many other strageies to solve sudoku puzzles. You have covered excellent strategies. Let's promote each other

@RFC963 6 жыл бұрын

Sudoku Guy - So nice of you to visit my channel. I am very honored. Thank you so much for the comment. You are right, there are many strategies to solve Sudoku puzzles as you have shown in your channel, which is nothing less than awesome. Congratulations!

@_being_mee_ 5 жыл бұрын

@@RFC963 pls subscribe and promote my channel also..m a big follower of ur videos and passionate about sudoku ..plssssss 😊😊

@mohsinkashif3674 4 жыл бұрын

Thanks a lot very informative

@RFC963 4 жыл бұрын

Glad it helped.

@dep7311 3 жыл бұрын

I have been using almost all the strategies unconsciously in all of my games... Finally! Now I can understand it deeper because I know the name of that strategy...

@RFC963 3 жыл бұрын

Thank you for your interest in sudoku.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@meriemtalin3126 4 жыл бұрын

Thank uu so much because of this video i won sudoku hard level .. from the first time Thank uuuu

@RFC963 4 жыл бұрын

Congratulations, Meriem talin!

@Moshie71 5 ай бұрын

Hi great post, on slide 4 (pointing pair) you used 269 to eliminate the 9 in 569 (Row A&B) why not the other way around?

@eliebordron5599 3 жыл бұрын

I'm making a program on R to solve sudokus. I thought I had it all figured out... Guess what I discovered something new here. Thanks a lot.

@RFC963 3 жыл бұрын

You may want to visit my channel where you will find more strategies explained. Thank you so such for your interest in sudoku.

@eliebordron5599 3 жыл бұрын

@@RFC963 Thanks, I find this video already well explained. I put the x-wing technique in my program for now, I'm gonna see if it works.

@eliebordron5599 3 жыл бұрын

@@RFC963 Thanks, I find this video already well explained. I put the x-wing technique in my program for now, I'm gonna see if it works.

@RFC963 3 жыл бұрын

@@eliebordron5599 There are many more powerful strategies this video has not discussed. They are X-Chain, XY-Chain, Swordfish, Finned X-wing, Skyscraper, 2-String Kite, XY-Wing, XYZ- Wing, and more. I wish you luck with your program.

@eliebordron5599 3 жыл бұрын

@@RFC963 OH how wrong I was! Thanks, I will check these out for sure!!

@Skibat74 3 жыл бұрын

In the "4. Pointing pair" exemple, the 9 from the middle-top block are eliminated because they are "pointed" by the 2 cells from the middle-bottom block. We could also have done the opposite and eliminate the 9 from the middle-bottom block. How do you chose in this case ?

@RFC963 3 жыл бұрын

The 9s in cells H5 and I5 in the middle-bottom block (Block VIII) are the only 9s in Block VIII, a requirement for a Pointing Pair. Being the only 9s in Block VIII, 9 has to be the solution to either H5 or I5. That means no 9 can appear in any other cells in Column 5 outside of Block VIII. But the pair of 9s in Block II are not the only 9s in Block II. They are not a Pointing Pair. Thank you for your interest in sudoku, and asking intelligent questions.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@kcvinu 6 жыл бұрын

Great tips. Thanks :)

@RFC963 6 жыл бұрын

Thank you for watching and commenting.

@karabishopart4153 3 жыл бұрын

Have you got a printable version of these nine strategies. Very helpful

@RFC963 3 жыл бұрын

Sorry, I don't have a printable version. Thank you so much for your interest in sudoku.

@soulnickos2245 5 жыл бұрын

That will take a year of practicing until i learn all of these strategies! Nice video!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@Lunar_DeBrie 17 күн бұрын

I may need some extra assistance for technique number 5. How do you know which numbers to single out? There was a column of three nines that could have been picked, as well. What is the deciding factor for which column/row gets picked? Hmm, nevermind, I think I'm starting to get it. Those eights were the only instance of eights in that row, so they had to be the ones to get an eight. I'm putting this into practice to see if I can understand better. Upon further inspection, I actually recently found this technique out on my own! I'm happy to find that after years of playing sudoku on and off, I know most of these tactics.

@studiojason8049 3 жыл бұрын

Okay, so, X-Wing (3:12) - if I have a 2 in row 1 column 1, r1c6, r9c1, and r9c6, (r1c7,8,9 and r9c7,8,9 do not have 2s) besides the 2s that make the X, all 2s in columns 1 and 6 can be eliminated?

@RFC963 3 жыл бұрын

Yes, thank you for your interest in sudoku.

@deept3215 5 жыл бұрын

In the 7th example (x-wing) you can remove the 9 in I8 too and it's a very important removal

@MrDarkKobe24 4 жыл бұрын

Good catch!

@jasonoram1215 2 жыл бұрын

But it is not in the same column

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@renatagois1136 7 күн бұрын

Thanks

@zhenhuayan5809 2 жыл бұрын

very helpful video, big thanks.

@RFC963 2 жыл бұрын

Thank you for watching and commenting.

@jacobdavis3225 Жыл бұрын

Hello what is the difference between a pointing pair and a claiming pair?

@tumak1 6 жыл бұрын

I see what is being shown now for #8...the naked pair is only found in the bottom block and the strategy works. I thought that the naked pair was being analyzed in the column, and of course that would not work. Thanks you for the good tip. Cheers

@RFC963 6 жыл бұрын

Thank you so much for your comment. Have a nice day.

@ramsjollychat6455 3 жыл бұрын

Super explanation. Thanks

@RFC963 3 жыл бұрын

Thank you for watching and commenting.

@nikolajnovak8366 5 жыл бұрын

at no. 5. hor do you know what row or column of 8s are you gonna pick?

@Grriso 5 жыл бұрын

You have to have at last one 8 in any row so if all your options are together in one block you can be sure one of those 8 in your row are correct so you can delete all 8 that are in block and outside of row because you know your 8 has to be places in row. So you are just looking for any set of numbers that are missing in row and only span one area.

@blueakash 2 жыл бұрын

It really helpful

@mr_black_beard510 2 жыл бұрын

Nr 5 is the one I don't get because there's another claiming pair in the same box right ?

@masih9237 4 жыл бұрын

I was using these techniques even before watching this video or any introduction. If you practice and think deeply you can understand most of them with the logic. For expert level I think you need to practice at least 2 years to understand it well. 35 minutes is the average for me to do expert level and it's got better and better by time.

@RFC963 4 жыл бұрын

Thank you so much for sharing your opinion on sudoku. You may be interested in my other uploads.

@Phriffo 2 жыл бұрын

Damn, the fact that you used these strategies before watching this vid, makes u very smart.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@amancasula9408 3 жыл бұрын

Great strategies!

@RFC963 3 жыл бұрын

Thank you for watching and commenting.

@nishahimmatramka858 5 жыл бұрын

Can we apply naked pair if there are three same digits in two cells of a row

@ashokkumarmishra9687 2 жыл бұрын

I learnt from this video.... Now able to solve in 30 to 40 minutes the expert levels... Most important I found the naked pair, x wing, the naked quad and the triplets....amazing

@RFC963 2 жыл бұрын

Thank you very much for your comment.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@OBLODY 2 жыл бұрын

Thanks for the video.

@RFC963 2 жыл бұрын

Thanks for watching.

@OBLODY 2 жыл бұрын

@@RFC963 you are welcome ✌

@ahhhhhhhhhhhh6742 5 жыл бұрын

Thank you it helps xD, feels good man!

@leepinnguin9682 6 жыл бұрын

2:18 example you have 2,6,9 on bottom two squares in the column, but you also have 5,6,9 in a row at the top. What made you choose the bottom 2 squares and not the top?

@RFC963 6 жыл бұрын

The two squares containing 5,6,9 at the top row do not meet the requirements of Pointing Pair. Thank you so much for watching and commenting.

@leepinnguin9682 6 жыл бұрын

but they have two 9's in a row exactly like the bottom, so what is the difference? I'm not understanding.

@pongsazaaa 6 жыл бұрын

the upper middle block have three 9 (A5 A6 B5). but the lower middle block have only two 9 (H5 I5). So, the lower middle block's 9 have only two possibility, either it's H5 or I5, which is on the middle column (5th column). If you choose the upper middle block's 9 (A5 B5), the lower middle block will have no possibility of 9, which is against the rule.

@RFC963 6 жыл бұрын

Krista - Thank you so much for your comment.

@leepinnguin9682 6 жыл бұрын

Well it makes perfect sense now! Thank you. I really makes me wonder how I didn't understand that before now that I do. I appreciate the help.

@devinmoore867 4 жыл бұрын

I just started playing this game and I'm getting better after every puzzle 😂

@RFC963 4 жыл бұрын

Congrats!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@dwilson7209 9 ай бұрын

For the Naked Triple 2:58, if box H6 contained 4, 6, and 8, would it still be considered a subset of the three candidates or no?

@narendraughade5798 4 жыл бұрын

Really thank u mate

@RFC963 4 жыл бұрын

Narendra Ughade, thank you for your comment.

@tobyinsley9010 6 жыл бұрын

Great video! Explains everything so clearly, was really helpful.

@RFC963 6 жыл бұрын

Comments like yours make my effort to make the videos worth its while. Thank you so much. You made my day.

@tobyinsley9010 6 жыл бұрын

RFC963 Just keep doing what you're doing. A lot of people tend not to write properly on videos, so synthesized voice or not, the way you wrote it was crystalline. I cannot express how nice it was for me to find a video that was explained with such clarity...

@RFC963 6 жыл бұрын

yas sy - So nice of you to say that. I appreciate it very much. Thanks!!!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@captainsmoka9864 5 жыл бұрын

Hey when I play this sudoku app on my phone and when I try the pointing pair or the one after that it sometimes works but sometimes it doesn't. Shouldn't it always work???

@charlieashwood5593 4 жыл бұрын

Without knowing what specifically you're doing differently than the video, that's hard to say. but i will walk you through it logically: If the only possible 9s (for example) in a box are all in the same row, the 9 for that box is definitely in that row. Since each row can only have one 9, then regardless of WHICH of those spaces (the ones in the box) is the 9, it's definitely one of them, so you can eliminate other possible 9s in the row. The strategy after that is the same, but backwards: If the only possible 9's in a row are all in the same box, then the 9 for that row is definitely in that box, so regardless of which space is actually the 9, that's the 9 for the box used up already -- you can eliminate other 9s in the box that aren't in that row. In other words, if you have worked out "the 9 in this box is definitely in this row," then that also means "the 9 in this row is definitely in this box." (Also works for columns instead of rows. But not with the same numbers in the same box, because by definition that has the possible 9s in multiple rows, and this is based on the possible 9s all being in the same row.)

@robertwilcken8431 4 жыл бұрын

Does the pointing pair (triple) have to be on the outside perimeters?

@travismanning9682 3 жыл бұрын

No, just in the same row or column within the same block

@arundhathidev327 2 жыл бұрын

can someone explain why they chose 3 and 8 at 3:38 ?why not others ? also can anyone explain 3:51 too? i didnt get that

@marionjoy9475 4 жыл бұрын

This is an excellent tutorial. I have been doing sudoku for a year and have the handle on the top 5 strategies. It will be interesting to apply these new strategies as I continue to learn this fascinating craft. THANK YOU. (btw.don't care about the robotic voice)

@RFC963 4 жыл бұрын

Thank you for your comment.

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@travismanning9682 3 жыл бұрын

For the naked triple and naked quad examples, since they’re in a row, can I also eliminate the numbers that are the same as them in the blocks? Or I have to only do it to the pairs in whatever way they are (column, row, block)?

@RFC963 3 жыл бұрын

They have to be in the same house, be it row, column, or block. Thank you for your interest in sudoku.

@travismanning9682 3 жыл бұрын

@@RFC963 Ok thank you. Thanks for all your videos! They helped a lot! I’m able to finish all the Evil Level sudokus on websudoku.com now just with using 7 of the basic strategies!

@RFC963 3 жыл бұрын

@@travismanning9682 I'm so glad my videos helped. Congratulations, now you are an expert!

@swamy143100 Жыл бұрын

kzfaq.info/get/bejne/j5qjotWXktvOaJc.html

@TheJ000ker 3 жыл бұрын

Thanks for the hidden pair

@RFC963 3 жыл бұрын

Thank you for your interest in sudoku.

@user-xo8nu2qm7w 11 ай бұрын

this is so cool

@Alex-gw6pm 9 ай бұрын

In the painting pair example, why to eliminate the candidates in the first block but not in the second one? 🤔

@annasismour9611 2 жыл бұрын

At 2:27 during pointed pair (triple) how do you know to use the 9’s in cells H5 & I5 instead of the 9’s in A5 & B5?

@RFC963 2 жыл бұрын

The 9's in cells A5 & B5 do not form a pointing pair because they are not the only 9's in the block.

@jasbdmsb 2 жыл бұрын

There is a tenth one I may have discovered and it involves none of those strategies. Basically it would mean that if you have a free number and can put it anywhere, essentially, but when placing it one of the numbers doesn’t move from a specific cell that is where that number belongs. I tried it when playing a very hard difficulty when determining the spot for the number 5 by using a 9 and 8. I found that if I flipped the order for the 9 and 8 the free 5 had one cell in which it never moved. Although, I could be wrong because I only did it once; it is what let me beat the game without any mistakes. I think it is possible to do if you don’t know any of these tips (which I didn’t) as it is a form of logic (if something doesn’t change position no matter how different the other outcomes are in the hypothetical scenarios then it must be the correct area). It’s just a guess but I think I found it through stress and chance. 😅

@jasbdmsb 2 жыл бұрын

Or I’m a complete idiot and got lucky. 😂

@RFC963 2 жыл бұрын

Congratulations, if you think you have discovered a new strategy although I don't follow your reasoning. You may be way over my head!

@miss_simran_x 4 жыл бұрын

What do you after you've done all the techniques and there are boxes with only 2/3 numbers in them? (when you can't eliminate any more but there are still pairs/3's left)

@miss_simran_x 4 жыл бұрын

Oh it means there's still a hidden pair somewhere if anyone wants to know

@RFC963 4 жыл бұрын

Simran Murti - There are more techniques than these nine. See my other uploads.

@miss_simran_x 4 жыл бұрын

@@RFC963 Thanks I will C:

@jeremyashford2115 6 жыл бұрын

This appears to be very basic information. Good help for beginners. I prefer to solve my Sudokus without writing in any numbers other than the solution. Learning to solve that way helps when playing online or using Sudoku machines. As I taught myself it was interesting to see the names you use for the various solving techniques. Thanks.

@jeremyashford2115 6 жыл бұрын

I neglected to say that I think your graphics are brilliant and explanations excellent. This video should be useful to a lot of people.

@RFC963 6 жыл бұрын

You must be a very smart man to have taught yourself to solve Sudokus. Thank you so much for watching the video and commenting on it.

@RFC963 6 жыл бұрын

Thank you so much for your kind words. Much appreciated.

@jeremyashford2115 6 жыл бұрын

I haven't got around to watching your next viseo yet. Something to look forward to. I have been solving sudokus for so long I don't remmber when I started. I bough puzzle books initially when I had some time in hospital. I'm a messy person which is a major reason not to write anything in but the solution. It can take longer the way I do it but that is not a worry. I do two daily sudoku, three on Sunday in the local papers, plus an excellent monthly produced by Lovatts in Australia. They alternate hard and quick issues and the had is overdue by two weeks now. I should ge a subscription. I do recommend weaning off writing in numbers as soon as possble. It is more challenging but also more satisfying. My wife, who is some years behind me in sudoku is doing pretty well that way. When I get around to the next video I'll give some more feedback.

@KAVIRAJ.MAHADEVAN 6 жыл бұрын

yep ......... I also just listened to the names used for known techniques

@robinkaiser5171 3 жыл бұрын

The pairing examples dont seem to work, I've tried multiple ties and still end up with false positives, also it seems very time consuming to fill every square with possibilities.

@RFC963 3 жыл бұрын

There are websites where they provide free sudoku puzzles that you can play online. Some of them are designed to facilitate our way of playing. For instance, they fill the squares with all possibilities for us if you ask. There are buttons in the menu you can click. Try New York Times and Washington Post and see how you like it.